{"product_id":"televue-oculare-nagler-22mm-type-4-2-grandangolare","title":"TeleVue Nagler 22mm Type 4 Eyepiece 2“ — 82° AFOV","description":"\u003cp\u003eThe \u003cstrong\u003eTeleVue Nagler 22mm Type 4\u003c\/strong\u003e opens the door to the widest true field possible in the entire Nagler line: a 6-element design in a 2\" barrel, an \u003cstrong\u003e82° apparent field of view\u003c\/strong\u003e and a generous \u003cstrong\u003e19mm of eye relief\u003c\/strong\u003e, designed for deep-sky observing at low-to-medium power even on very fast telescopes.\u003c\/p\u003e\n\n\u003ch3\u003eAl Nagler's \"spacewalk\", now with more eye relief\u003c\/h3\u003e\n\u003cp\u003eLike the whole Nagler series, the Type 4 aims to recreate the feeling of floating in space thanks to its \u003cstrong\u003e82° AFOV\u003c\/strong\u003e. Drawing on experience gained from developing the Radian series, TeleVue achieved more contrast, reduced pincushion distortion, a wider true field and significantly more generous eye relief than the classic Naglers with the Type 4 — features that make it particularly suited to eyeglass wearers.\u003c\/p\u003e\n\n\u003ch3\u003e\"Instadjust\" click-stop eyecup\u003c\/h3\u003e\n\u003cp\u003eThe Type 4 introduces the distinctive \u003cstrong\u003e\"Instadjust\" click-stop adjustable eyecup\u003c\/strong\u003e: rotating it raises or lowers its height to find the ideal eye-to-lens distance, preserving the full 82° field even when wearing glasses. The \u003cstrong\u003e6-element design\u003c\/strong\u003e with a 31.1mm field stop, proprietary multi-layer coatings and blackened lens edges delivers maximum contrast even at fast focal ratios, down to f\/4.\u003c\/p\u003e\n\n\u003ch3\u003e2\" barrel with filter threads\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e2\" (50.8mm) barrel\u003c\/strong\u003e features filter threads for standard astronomy filters, a rubber grip and a safety undercut groove. It's also compatible with the \u003cstrong\u003eDioptrx\u003c\/strong\u003e astigmatism-correction system (adapter sold separately). Like every Nagler, each unit undergoes a 100% full-field visual inspection before shipping.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eProduct code\u003c\/th\u003e\u003ctd\u003eEN4-22.0\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eSeries\u003c\/th\u003e\u003ctd\u003eNagler Type 4\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eFocal length\u003c\/th\u003e\u003ctd\u003e22 mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eApparent field of view (AFOV)\u003c\/th\u003e\u003ctd\u003e82°\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eEye relief\u003c\/th\u003e\u003ctd\u003e19 mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eOptical elements\u003c\/th\u003e\u003ctd\u003e6\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eField stop\u003c\/th\u003e\u003ctd\u003e31.1 mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eOptical coating\u003c\/th\u003e\u003ctd\u003eProprietary TeleVue multi-layer, blackened lens edges\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBarrel\u003c\/th\u003e\u003ctd\u003e2\" (50.8mm) with filter threads\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eEyecup\u003c\/th\u003e\u003ctd\u003eAdjustable \"Instadjust\" click-stop\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eDioptrx compatible\u003c\/th\u003e\u003ctd\u003eYes (adapter sold separately)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eWeight\u003c\/th\u003e\u003ctd\u003e680 g\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eLength\u003c\/th\u003e\u003ctd\u003e99 mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMade in\u003c\/th\u003e\u003ctd\u003eUSA — TeleVue Optics\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":58612518650187,"sku":"TV14214","price":759.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0886\/1981\/1147\/files\/televue-nagler-22mm-type-4-oculare-82-gradi-afov.jpg?v=1790500404","url":"https:\/\/adriasky.it\/en\/products\/televue-nagler-22mm-type-4-eyepiece-wide-angle","provider":"Adriasky","version":"1.0","type":"link"}